rewrite using OcramiusProxyManager
Merge branch 'master' into ocramius-proxy-manager

New tests.

Conflicts:
	AccessManager/AccessManager.php
Pass test with both attribute and expression set.

OcramisProxyManager Interception proxies accept only one prefix
function. Se if we first set one for attribute and then one for
expression does'nt work. So three cases : both, expression, or attribute
Fix for PHP 5.3

PHP 5.3 does not handle $this in closures, so we have to pass it through
another variable.
Fix for PHP 5.3

$this in closures does not work in PHP 5.3 so we have to pass the object
explicitely, AND all the needed private properties too.
Fix for PHP 5.3

There was still one $this left.